. >> president obama plans to travel to south africa to attend the memorial service. the bay area is mourning the loss of bay area have given me and my delegation hope to continue farther >> thousands cheered when he spoke in 1990. mandela visited shortly after being released from prison. congressman barbara lee shared these thoughts with thus summer. >> president mandela is a person who really demonstrates that sacrifice is sometimes what it takes to be able to continue with the fight of freedom and justice. >> many point to the bay area as being a world wide leader in the antiapartheid movement. years of protests forced local corporations to divest from south africa. >> here is how world leaders are reacting to the death. former president clinton tweeted irr . >> former president bush told abc news this great man will be missed but contributions will live on, forever. >> there was a mement of silence at the united nations security council today. the un president called mandela a giant for justice and a down to earth human inspiration. >> we've created a slide show